Several times over the life of this blog, I have discussed the Kalam Cosmological Argument– as well as other, similar cosmological arguments for God. They are exceedingly popular topics within theistic apologetics and are therefore levied quite often. As a reminder, the Kalam is often formulated as follows:
- Anything which begins to exist has a cause for its existence.
- The universe began to exist.
- Therefore, the universe has a cause for its existence.
The theistic apologist will usually then argue that the only possible cause for the universe’s existence must be God. Detractors and critics of these cosmological arguments, like myself, often point out that this doesn’t seem to make much sense when applied to the universe, as a whole. After all, “the universe” includes time, and if the universe began to exist, then that implies that there must have been a first moment of time. However, if there is a first moment of time, the universe exists in that moment; and since there are no moments prior to the first, there is literally no time prior to the universe’s existence during which it could have been caused.
There cannot have been anything which existed before the universe because there is literally no such thing as “before the universe.”
The prolific philosopher and theologian, Dr. William Lane Craig, addresses this issue in a manner which I find to be rather curious. Dr. Craig acknowledges that it is nonsensical to assert that there must have been something before the universe which caused the universe to exist. Instead, he invokes the notion of causal simultaneity— that is, the idea that a cause can be simultaneous with its effect. With such a notion in place, Dr. Craig argues that the implications of the Kalam are salvaged and that God must still be the cause of the universe.